ホーム > 用語 > アルバニア語 (SQ) > madhësia absolute

madhësia absolute

1) A measure of the intrinsic brightness of a star or galaxy. Absolute magnitude is defined as the apparent magnitude the star or galaxy would have if it were 32.6 light-years (10 parsecs) from Earth. The lower an object's absolute magnitude, the greater its intrinsic brightness. For example, the Sun has an absolute magnitude of +4.83, while Sirius, whose intrinsic brightness is greater, has an absolute magnitude of +1.43. A star that is one absolute magnitude brighter than another (e.g., +4 versus +5) is 2.5 times intrinsically brighter; a star that is 5 absolute magnitudes brighter is 100 times intrinsically brighter; and a star that is 10 absolute magnitudes brighter is 10000 times intrinsically brighter.

2) The absolute magnitude (g) of a solar-system body such as an asteroid is defined as the brightness at zero phase angle when the object is 1 AU from the Sun and 1 AU from the observer.

0
マイグロッサリに追加する

メンバーのコメント

ディスカッションへ投稿するにはログインしてください。

ニュース関連の用語

ピックアップされた用語

ilirejupi
  • 0

    用語

  • 0

    グロッサリ

  • 6

    フォロワー

産業/ドメイン ドラマ カテゴリ 演技

me duart në ijë

a position in which the hands are on the hips and the elbows are bowed outward

貢献者

ピックアップされたグロッサリ

test_blossary

カテゴリ: Business   1 1 用語

Paintings by Albrecht Dürer

カテゴリ: アート   2 19 用語